Full Stack Developer Intern

💻 Full Stack Developer Intern – Code the Future of Wealth

Location

: Chennai / Remote

Duration

: 3–6 months

Type

: Internship (Full-time / Part-time)

About Us

At

PinSec.Ai

, our foundation is built on being a

high-performance, AI-native proprietary trading firm

. We leverage

data-driven insights

,

machine learning

, and

systematic research

to generate

repeatable alpha

across Indian and global financial markets. Our in-house technology stack powers

low-latency trading systems

, advanced

risk management frameworks

, and robust

research pipelines

—spanning equities, commodities, and currencies.With a strong and proven core in

quantitative strategy development and execution

, we are now expanding into a

new internal product vertical

— building

intuitive fintech platforms

that make money less intimidating and investing more approachable. This next phase of our journey blends our

technical depth in trading

with a

human-centered design approach

to wealth management.From

live quant trading infrastructure

to

interactive user dashboards

and

personalized wealth insights

, we’re reimagining how people interact with money — and this is your chance to help shape that future from the inside out.

Role Overview

We're looking for a

curious and hands-on Full Stack Developer Intern

to work across

frontend, backend, and data layers

. You’ll collaborate with

product managers, quant researchers, and designers

to turn prototypes into

production-ready code

.No coffee runs here — you'll ship real features that power real portfolios.

Key Responsibilities

• Build intuitive frontend interfaces using modern JavaScript frameworks (React preferred).
• Develop and maintain backend logic, APIs, and microservices using Node.js, Python, or similar stacks.
• Integrate real-time data streams, external APIs, and internal trading systems.
• Optimize SQL/NoSQL databases for performance and scalability.
• Debug, test, and improve system reliability — you’ll be our bug slayer and stability hero.
• Contribute to internal tools, dev automation scripts, and developer infrastructure.
• Collaborate using Git, GitLab, and project management tools like Zoho Projects or Notion.
  

What We’re Looking For

• Experience with JavaScript frameworks (React/Vue/Angular) and backend stacks like Node.js, Python, or Java.
• Knowledge of databases (MongoDB, PostgreSQL, etc.) and REST/WebSocket API architectures.
• A mindset to build, break, fix, and learn quickly in a fast-paced startup environment.
• Strong individual ownership combined with great team collaboration skills.
• Bonus: Passion or curiosity for fintech, markets, or investing applications.
  

What’s In It For You

• Full Stack Ownership – Work across the stack — not just “fix a button”.
• Live Codebase – Your code will go to production and be used by real users.
• Mentorship with Autonomy – Get guidance, but also the freedom to explore and build.
• Fintech Insight – Learn how modern wealth-tech platforms are built — from backend systems to frontend interactions.
• Tech Stack Exposure – React, Node.js, Python, AWS, Docker, WebSockets, CI/CD, GitLab, and more.
• Startup Learning Curve – 3 months here = 1 year of big-company experience.
• Portfolio Power – Leave with live projects, GitHub commits, and real case studies to showcase.
  

Who Should Apply?

✅ You’re passionate about building systems that impact real users.✅ You enjoy fast learning, rapid prototyping, and building with ownership.✅ You thrive in a collaborative, hands-on startup environment.✅ You want to understand how real-world fintech products and trading systems work.

Tech Stack You Might Use

React, JavaScript, HTML/CSS, Node.js, Python, MongoDB, PostgreSQL, REST APIs, WebSockets, Docker, AWS, Git/GitLab, CI/CD pipelines.

Perks & Culture

✅

Competitive Fixed Compensation

– Industry-leading pay for top intern talent✅

Performance-Based Bonuses

– Aligned with your contributions and impact✅

Global Exposure

– Interact with cross-border teams and mentors✅

Team Engagement

– Social events, collaborative rituals, and hackathons✅

Startup Energy

– Fast-moving, high-impact, and meritocratic environment